Average Bench: 62.1% - 450th / 836

more Based on 409 user benchmarks.  Models: KINGSTON SKC300S37A120G, KINGSTON SKC300TS37A120G, KINGSTON KINGSTON SKC300S, KINGSTON SKC300S37A1, KINGSTON SKC300S37A120G, KINGSTON SKC300S

Above average average bench

The Kingston SSDNow KC300 120GB averaged 37.9% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Write Speed 70MB/s
Avg. 4K Random Read Speed 23.9MB/s
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Good consistency

The range of scores (95th - 5th percentile) for the Kingston SSDNow KC300 120GB is 28.4%. This is a relatively narrow range which indicates that the Kingston SSDNow KC300 120GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 178MB/s
Avg. 4K-64Thread Read Speed 117MB/s

Average Bench

(Based on 409 samples)
Min Avg Max
337 Read 460 509
132 Write 178 227
162 Mixed 222 297
62.6% 286 MB/s
Min Avg Max
14.4 4K Read 23.9 33.9
34.4 4K Write 70 107
8.74 4K Mixed 15.3 21.7
92.9% 36.4 MB/s
Min Avg Max
21.7 DQ Read 117 223
51.3 DQ Write 142 204
7.94 DQ Mixed 36.3 64.4
53.1% 98.2 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
18GB free
Firmware: 507KC4 Max speed: SATA 3.0 600 MB/s
Read 345
Write 163
Mixed 208
52% 238 MB/s
4K Read 29.5
4K Write 80.4
4K Mixed 14.7
106% 41.5 MB/s
DQ Read 29.2
DQ Write 126
DQ Mixed 14.6
30% 56.4 MB/s
32GB free
Firmware: 526ABBF0 Max speed: SATA 3.0 600 MB/s
Read 475
Write 181
Mixed 262
67% 306 MB/s
4K Read 17.3
4K Write 42.5
4K Mixed 13.7
66% 24.5 MB/s
DQ Read 185
DQ Write 168
DQ Mixed 56.9
76% 137 MB/s
10GB free
Firmware: 507KC4 Max speed: SATA 3.0 600 MB/s
Read 474
Write 148
Mixed 167
57% 263 MB/s
4K Read 15.5
4K Write 80.4
4K Mixed 15.1
85% 37 MB/s
DQ Read 31.1
DQ Write 87.2
DQ Mixed 14.9
24% 44.4 MB/s
11GB free
Firmware: 507KC4 Max speed: SATA 3.0 600 MB/s
Read 459
Write 125
Mixed 162
54% 249 MB/s
4K Read 27.7
4K Write 17.7
4K Mixed 11.5
66% 19 MB/s
DQ Read 51.7
DQ Write 32.7
DQ Mixed 21.9
22% 35.4 MB/s

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,124,209 SSDs tested.


NeweggUS $79.9811 months ago.
AmazonUS $101.608 mins ago.
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Typical SSDNow KC300 120GB Builds (Compare 1,716 builds) See popular component choices, score breakdowns and rankings.
Gaming 80%
Desktop 78%
Workstation 59%

Motherboard: Asus Z97-K - $130

EDIT WITH CUSTOM PC BUILDER Value: 83% - Excellent Total price: $924

Popular SSDNow KC300 120GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
Solid State Drive Rankings (Price vs Performance) February 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]


Controller: SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode.

One of the most power-efficient SSDs on the market...

Added 2 years ago.

836 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

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Intel Core i5-7600K $230Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $170
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Seagate Barracuda 3TB (2016) $90G.SKILL Trident Z DDR4 3200 C14 4x16GB $570SanDisk Extreme 32GB $26
Seagate Barracuda 7200.14 1TB $50HyperX Fury DDR4 2133 C14 2x8GB $123SanDisk Extreme 16GB $18
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